<template>
  <div>
    <div v-show="flag">全场清仓，全部5折</div>


     <ul>
        <li v-for="item in goods" :key="item.name">
            <div>{{item.name}}</div>
            <div>{{(item.price*item.discount).toFixed(2)}}</div>
            <div>折扣:{{item.discount*100}}</div>
        </li>
     </ul>
     <input type="text" v-model='count' placeholder="请输入小数">
     <button  @click="btn">想省钱就点击</button>
   </div>
</template>
 
<script>
export default {

  data() {
    return {
        goods:[
            {
                name:'mac电脑',
                price:'15000',
                discount:1
            },
            {
                name:'百事可乐',
                price:'3',
                discount:1
            },
            {
                name:'保温杯',
                price:'99',
                discount:1
            },
            {
                name:'保暖手套',
                price:'130',
                discount:1
            },
        ],
      flag:false,
      conut:''
      
    };

  },
  methods:{
    btn(){
      this.flag =!this.flag
      this.goods.forEach(item=>{item.discount=this.count})
    }
  },
 
};
</script>

<style scoped>
ul {
    margin: 0;
    padding: 0;
}

li {
    list-style: none;
    width: 200px;
    height: 80px;
    padding:10px 0 0 0 ;
    border: 2px solid #333;
}
</style>